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phy127:hw3 [2011/02/21 13:54]
mvfernandezserra
phy127:hw3 [2011/02/21 13:56] (current)
mvfernandezserra
Line 62: Line 62:
 We have a nonconducting sphere, with a total charge Q uniformly distributed throughout its volume. The E field inside the sphere is We have a nonconducting sphere, with a total charge Q uniformly distributed throughout its volume. The E field inside the sphere is
 not zero, because it is not a conductor and there is charge everywhere inside. We define to regions: r<r0 (inside) and r>ro (outside).\\ not zero, because it is not a conductor and there is charge everywhere inside. We define to regions: r<r0 (inside) and r>ro (outside).\\
-We also make use of the charge density instead of the total charge: $\sigma=\frac{Q}{4/​3\pir_0^3}$\\+We also make use of the charge density instead of the total charge: $\sigma=\frac{Q}{4/​3\pi r_0^3}$\\
 Inside, r<r0:\\ Inside, r<r0:\\
  
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 We need to integrate the potential due to a differential of charge $d$q. $V=\int{\frac{\partial q}{4\pi\epsilon_0 r}}$.\\ We need to integrate the potential due to a differential of charge $d$q. $V=\int{\frac{\partial q}{4\pi\epsilon_0 r}}$.\\
 $r=l/\pi$\\ $r=l/\pi$\\
-$V=\frac{\pi}{4\pi\epsilon_0 l}\inr \partial q=\frac{Q}{4\epsilon_0 l}$.\\+$V=\frac{\pi}{4\pi\epsilon_0 l}\int\partial q=\frac{Q}{4\epsilon_0 l}$.\\
  
  
 ==== 23.61==== ==== 23.61====
  
-$\frac{v_e}{v_p}=sqrt{\frac{m_p}{m_e}}$+$\frac{v_e}{v_p}=\sqrt{\frac{m_p}{m_e}}$
 ==== 23.71==== ==== 23.71====
 ==== 23.84==== ==== 23.84====
phy127/hw3.txt ยท Last modified: 2011/02/21 13:56 by mvfernandezserra
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